Anti-synthetase syndrome (ASSD) is an autoimmune disease characterized by autoantibodies against aminoacyl transfer RNA (tRNA) synthetases. Morbidity and mortality of this disease is highly affected by interstitial lung disease (ILD) which is present in about 80% of patients. In this study, we investigated possible differences in immune-related miRNAs between ASSD patients with and without ILD; 15 ASSD patients were enrolled (11 with ILD and 4 without ILD) and 5 patients with Idiopathic pulmonary fibrosis (IPF). Differential expressed miRNAs was identified in plasma derived-exosomes, using miRNA PCR array (MIHS-111ZG, Qiagen); miR-30a-5p and miR-29c-3p were up-regulated in ASSD-ILD patients as compared to patients without lung involvement (adjusted p-value <0.05). IPF patients showed higher miR-29c-3p levels expression with respect to both ASSD and ASSD-ILD (p=0·0005), whereas levels of miR-30a-5p were not significantly different; miR-29c-3p and miR-30a-5p are over-expressed in ASSD patients with ILD compared those without ILD. These miRNAs are involved in inflammation and fibrosis, through their action on molecules like NF-κB and TGF-β1. Although the role of these miRNAs in ILD development has not been proved, it is possible to suggest that their exosome levels could be useful in identifying those more prone to develop ILD.
La sindrome da antisintetasi (ASSD) è una patologia autoimmune caratterizzata da autoanticorpi contro gli amminoacil-tRNA sintetasi. Morbidità e mortalità di questa patologia sono particolarmente condizionate dalla malattia polmonare interstiziale (ILD) presente in circa l’80% dei pazienti. In questo studio, abbiamo valutato le possibili differenze dei miRNA immuno-correlati tra pazienti affetti da ASSD con e senza ILD. Sono stati valutati 15 pazienti affetti da ASSD (11 con ILD e 4 senza ILD) e 5 pazienti con fibrosi polmonare idiopatica (IPF). È stata identificata una differente espressione dei miRNAs circolanti, usando miRNA PCR array (MIHS-111ZG, Qiagen). miR-30a-5p e miR-29c-3p erano up-regolati nei pazienti affetti da ASSD con ILD rispetto ai pazienti senza coinvolgimento polmonare (p value <0.05). I pazienti con IPF hanno mostrato un maggior livello di espressione di miR-29c-3p rispetto sia ai pazienti con ASSD sia a quelli con ASSD-ILD (p=0.0005), mentre i livelli di miR-30a-5p non erano significativamente differenti. miR-29c-3p e miR-30a-5p sono overespressi in pazienti affetti da ASSD con ILD rispetto a quelli senza ILD. Questi miRNAs sono coinvolti nell’infiammazione e nella fibrosi, attraverso la loro azione su molecole come NF-kB e TGF-β1. Sebbene il ruolo dei miRNAs nello sviluppo di ILD non sia stato dimostrato, è possibile suggerire che i loro livelli in circolazione potrebbero essere utili al fine di identificare i pazienti più inclini a sviluppare ILD.
miRNAs circolanti nella fibrosi polmonare interstiziale secondaria alla sindrome da antisintetasi
BARBIERI, AURORA
2021/2022
Abstract
Anti-synthetase syndrome (ASSD) is an autoimmune disease characterized by autoantibodies against aminoacyl transfer RNA (tRNA) synthetases. Morbidity and mortality of this disease is highly affected by interstitial lung disease (ILD) which is present in about 80% of patients. In this study, we investigated possible differences in immune-related miRNAs between ASSD patients with and without ILD; 15 ASSD patients were enrolled (11 with ILD and 4 without ILD) and 5 patients with Idiopathic pulmonary fibrosis (IPF). Differential expressed miRNAs was identified in plasma derived-exosomes, using miRNA PCR array (MIHS-111ZG, Qiagen); miR-30a-5p and miR-29c-3p were up-regulated in ASSD-ILD patients as compared to patients without lung involvement (adjusted p-value <0.05). IPF patients showed higher miR-29c-3p levels expression with respect to both ASSD and ASSD-ILD (p=0·0005), whereas levels of miR-30a-5p were not significantly different; miR-29c-3p and miR-30a-5p are over-expressed in ASSD patients with ILD compared those without ILD. These miRNAs are involved in inflammation and fibrosis, through their action on molecules like NF-κB and TGF-β1. Although the role of these miRNAs in ILD development has not been proved, it is possible to suggest that their exosome levels could be useful in identifying those more prone to develop ILD.È consentito all'utente scaricare e condividere i documenti disponibili a testo pieno in UNITESI UNIPV nel rispetto della licenza Creative Commons del tipo CC BY NC ND.
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https://hdl.handle.net/20.500.14239/15774